![]() Some examples of object-oriented DBMSs are O2, ObjectStore and Jasmine.Īpplication programmer: user who implements specific application programs to access the stored dataĪpplication user: accesses an existing application program to perform daily tasks.Ĭentralized database system: the DBMS and database are stored at a single site that is used by several other systems tooĭata elements: facts that represent real-world informationĭatabase: a shared collection of related data used to support the activities of a particular organizationĭatabase administrator (DBA): responsible for authorizing access to the database, monitoring its use, and managing all the resources to support the use of the entire database systemĭatabase management system (DBMS): a collection of programs that enables users to create and maintain databases and control all access to themĭatatype: determines the sort of data permitted in a field, for example, numbers onlyĭistributed database system: the actual database and the DBMS software are distributed from various sites that are connected by a computer networkĮnd user: people whose jobs require access to a database for querying, updating, and generating reports The object-oriented models have not caught on as expected so are not in widespread use. Object-oriented database management systems (OODBMS) combine database capabilities with object-oriented programming language capabilities. Object-oriented databases are different from relational databases, which are table-oriented. This model is a database management system in which information is represented in the form of objects as used in object-oriented programming. ![]() In recent years, the newer object-oriented data models were introduced. These are all referred to as traditional models because they preceded the relational model. However, they are not commonly used due to their complexity. Other traditional models, such as hierarchical data models and network data models, are still used in industry mainly on mainframe platforms. Well-known DBMSs like Oracle, MS SQL Server, DB2 and MySQL support this model. The most popular data model in use today is the relational data model. A system that issues airline reservations.A collection of word-processed documents.Your personal address book in your email client.A medical record system for a health care facility.A client-tracking application for social service organizations.A website that is capturing registered users.The processing power of a database allows it to manipulate the data it houses, so it can:īecause of the versatility of databases, we find them powering all sorts of projects. Generating lists of selected news stories.We often need to access and re-sort data for various uses. ![]() Managing information using a database allows us to become strategic users of the data we have. It becomes more accessible and integrated with the rest of our work. By using a DBMS, the information we collect and add to its database is no longer subject to accidental disorganization. Managing information means taking care of it so that it works for us and is useful for the tasks we perform. ![]() \)Ĭharacteristics and Benefits of a Database ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |